Bucket



A ril 14, 1925. v 1,533,512

A. E. NORRIS BUCKET Filed July 11, 9 3 Sheets-Sheet 1 Inventor. flit awn EIMrris,

April 14, 1925.

A. E. NORRIS BUCKET 1 2 3 Sheets-Sheet 2 Filed July 11 Inventor: fllmwwfl Norr s,

April 14, 1925.

A. E. NORRIS BUCKET Filed July 11.

1925 s Sheets-Sheet 5 5. Q

[wen/ion.

Norris,

Patented Apr. 1925.

ALMON E. NORRIS, F BROOKLINE, MASSACEUST TTS.

BUCKET.

Application filed July 11,

To all ro/10112 may concern.

Be it known that Lltmroiv ltl. Nonnis, a citizen of the United States, and a resident of Brookline, in the county of Norfolk and State of lvlassachusetts, have invented an Improvement in Buckets, of which the lollowing description, in connection with the accompanying drawings. is a specification, like characters on the drawings represent ing like parts.

This invention relates to grab buckets, and aims to provide a bucket having provision for use in either of two positions.-one transverse to the other. considered with rel.- erence to a vertical axis.

The invention will be best understood by reference to the following description. when taken in connection with the accompanying drawings of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings:

Fig. 1 is an elevation of a hoisting apparatus having a grab bucket exemplifying the invention;

Fig. 2 is a the bucket; I i

Fig. 3 is a plan illustrating the relative arrangement of the upper and. lower sets of sheave wheels for the opening and closing rope;

Fig. 4 is a sectional view on line 4- 4- of Fig. 2;

Fig. 5 is a plan of the hoisting apparatus as viewed from a point above the trolley;

Figs. 6 and 7 are diagram aatic views illustrating the two positions of the bucket, one transverse to the other, and the corresponding positions of the holding and opening and closing ropes; and

Fig. 8 is a sectional view on an enlarged scale on line 8-8 of Fig. 1.

Referring to the drawings, and to the embodiment of the invention which is selected for exemplification, there is shown see F 1) a grab bucket whose general characteristics are similar to those of the bucket which is the subject matter of United States Letters Patent, No. 992.799, issued to me Ma 23rd, 1911. As herein shown, the crab bucket comprises a pair of segments 10, mounted on pivots 11 on a lower head 12, and geared together by segmental gears 13 meshing with each other. An upper head 14 is connected to the sectors by pairs of links 15 pivoted to plan of the upper portion of 1923. Serial No. 650,818.

the upper head at 16 and to the sectors at 17. These links are geared together at 18.

The upper head carries a set ot sheave wheels 19, and the lower head carries a similar set ot sheave wheels 20 (see Fig.- 3), one set being connected to the other by an opening and closing rope 21. As shown in big.

the two sets of sheavcwheels are disposed with their axes at such an angle to each other as to provide straight leads of the opening and closing rope, from one set to the other. Two of the leads extend in an upward direction from the upper head. and the latter is provided withappropriate guides for the leads. In the present example, each lead is guided by two pairs of guide rollers 22 and 23 see Fig. 8), mounted to turn on pins 24; and 25, respectively, perpendicular to each other (see Fig. 2). i

Referring now to Fig. 2, a holding rope 26 has two leads provided with terminals 27 which are attached as by links 28 to the upper head 14 at points substantially 180 degrees apart, about the vertical axis of the grab, and substantially 45 degrees from the leads of the opening and closing rope. Provision is made to attach the terminals of the holding' rope to the bucket in either of two positions, one transverse to the other. here in one at right angles to the other. *In one of these positions, links 28 are attached to pivots 29, which extend through walls 30 presented by the upper head 14. These pins are normally held in place by suitable means. herein bolts 31, which extend through ears 32 and across heads 33 presented by the pins (see 2 and 4-). By first removing the bolts 31, the pins 29 may be withdrawn. thereby detachin the links 28 from the head 14. The links are then reattached to the bucket by similar means now to be described.

The outer end of the pivots 16 are connected to each other by yokes 34. and the links 28 are conveniently attached to these yokes as by pins 35, which extend through walls 36 presented by the yoke. The pins are held in place by bolts 37, which extend through ears 38 formed on the yoke, and across heads 39 presented by the pins. The removal of the pins is effected in a manner identical with that of the pins 29. Thus it is evident that by shifting the points of attachment of the leads of the holding rope,

through an angle of 90 degrees, the bucket may be presented in either of two positions,

one at right angles. to the 0ther, as will be readily apparent "from an examination of the diagrams in Figs. 6 and 7.

The bucket may be carried by any suitable traversing support, such as a main trolley 40, best shown in Fig. 5, having a pair of opening and closing rope drums 41, and a pair of holding rope drums 42, each pair being separately driven, held in any usual manner. The two leads-oi the opening and closing rope extend in an upward direction (see Fig. 1), and are wound about and dead-ended on the drums 12, while the two leads of the holding rope are similarly wound about and dead-ended on the drums 41. The opening and closing, and the raising andlowering of the bucket are accom plished in the usual manner. In opening the bucket, the holding ropes are held sta tionary, and the opening and closing ropes are allowed to pay out. thereby causing the bucket to open by reason of the weight of the lower head and the bucket segments. The closing of the bucket is accomplished by a reversal of this operation. Raising and lowering of the bucket is accomplished by winding in and; paying out the holding and opening and closing ropes simultaneously.

Having thus described one embodiment of the invention, but without limiting myself thereto, what I claim and desire by Letters Patent to secure is:

1. The combination with a' suitable support, of a grab having holding and opening and closing ropes connecting'thesame with said support, and means providing for longitudin'al or transverse positioning of said grab with reference to said support;

2. The combination with. a 'suitable support, of a grabhaving holding and opening and closing ropes connecting the same with said support, and means providing for changing the relative arrangement of one set of said ropes with reference to the others through an angle of substantially ninety degrees, thereby to cause said grabto be presented longitudinally or transversely of said support.

3. The combination with a' suitable support, of a grab having a holding rope suspendi'nm said grab from said support and presenting twoleads connected to said grab, an opening and closing rope presenting two leads connected to said grab,-each substantially forty-five degrees from one of the holding rope leads, and means providing for shifting one pair of leads with refer.- ence to the other through an angle of substantially ninety degrees, thereby to cause said grab to be presented longitudinally or transversely of said support.

4. The combination with a suitable support, of a grab having a holding rope suspending said grab from said support and presenting two leads connected to said grab at points approximately one hundred eighty degrees apart about a vertical aXis, an open ing and closing rope presenting two leads one hundred and eighty degrees apart and connected to said grab, each substantially forty-five degrees from one ofsaid holding rope leads. and means providing for shifting one pair of leads with reference to the other through an angle of substantially ninety degrees, thereby to cause said grab to be presented in either of two positions one substantially one hundred and eighty de grees from the other considered with reference to said vertical axis.

5. Th ecombination with a suitablesupport, of a grab having holding and opening and closing ropes connecting the same with said support, and means of attachment of said holding ropes to said grab in-either of two positions, one transverse to the other.

(5. The combination with a suitable support, of a grab comprising upper and lower heads, an opening'and closing rope connecting said heads together and having two leads connecting said grab with said support, a holding rope having twoleads 'connected to said support, and means for attaching said lioldingrope leads to said'upper head in either of twopositions one transverse to the other.

7. The combination with a suitable support, of a grab comprising upper and lower heads, an opening and closing'rope connecting said heads together and having two leads connecting said grab with said support, a holding rope having two'leadsconnected to said support, said upper head presenting two sets of openings, one set disposed transversely of the other, and means adapted to be inserted into either set' of openings to attach said leads of said holding rope to said upper head in either of two positions one transverse to the other.

In testimony whereof, I have signed my' name to this specification.

ALMON E. NORRIS. 

